IIROC...TORONTO, Feb. 13, 2015 /CNW/ - The following issues have been halted by IIROC: Company: Telesta Therapeutics Inc. TSX Symbol: TST (all issues) Reason: Pending News Halt Time (ET): 9:19 AM IIROC can make a decision to impose a temporary suspension (halt) of trading in a security of a publicly-listed company. Trading halts are implemented to ensure a fair and orderly market. IIROC is the national self-regulatory organization which oversees all investment dealers and trading activity on debt and equity marketplaces in Canada.